In a crash test, a truck with mass 2100 kg traveling at 18 m/s smashes head-on into a concrete wall without rebounding. The front end crumples so much that the truck is 0.64 m shorter than before.

Which object is most likely represented by a dot?

Argon is adiabatically compressed from an initial volume of 16 liters to a final volume of 2 liters. by what factor do the following quantities change? do they increase or decrease? (a) the rms speed (b) the thermal energy of the gas (c) the molar specific heat cv (d) the pressure

Which one of the following terms is used to indicate the natural tendency of an object to remain at rest or in motion at a constant speed along a straight line? velocity acceleration equilibrium force inertia